Vet gets there and I show her pictures of last nights swelling. She grabs a flashlight, gloves and stethoscope. She prefers to exam the horse in their stall so long as they are quiet, so we walked into Bonnie's stall and put her halter and lead rope on her.
First check is teeth and interior of mouth. After realizing that Bonnie wasn't going to be stupid she had me toss the lead rope of Bonnie's withers and hold the flash light and looked all the way to the back of her throat. She felt all her teeth etc. Her only comments is that there were no waves to surfaces of her teeth. She explained that waves are important on the surface to move hay from front to back.
Other than that, nothing wrong with her teeth or mouth.
She moved on to the swelling on her nose. It is very swollen on the right side, the left I believe is just "spread" from the right side.
She pushed lightly on the spot itself and Bonnie did a bit of head tossing. She's not a head tossing type of horse so it obviously bothered her. She pushed in certain spot in the bump and Bonnie reacted very violently from pain. She then pushed on the same spot on the opposite side and there was no reaction from Bonnie.
M. in the diagram below is the root of her pain...
M is the Infra-Orbital Nerve.
This nerve controls sensation not motor function. It is also the culprit in neurotic head shakers.
Vet believes that she bumped her face or, more likely, was on the receiving end of at least one hoof, probably a pair of hooves. The other probably hit her in the neck causing the swelling there yesterday. Just took a few days for it to come out.
Treatment is a couple of days of Banamine.
She ate her mash much better tonight. No strange swallow thing going on at all.
At this point I will completely relax once she starts drinking water normally. She's not dehydrated by capillary refill rate on the gums, but her flanks are sunk in.